Van Gaal is still looking to replace Nemanja Vidic and Rio Ferdinand at the heart of his defence and although he is keen on a move for Dutchman Daley Blind, Benatia remains a key target.

Meanwhile, Blues boss Jose Mourinho is also said to still be in the market for a centre-half, following the departure of David Luiz to Paris Saint-Germain.

Team-mates Francesco Totti, Daniele De Rossi and Miralem Pjanic have all urged the Moroccan to remain with Roma this summer, but Benatia is said to be prepared to move away if the Serie A club do not approach him with an improved contract.